Printing positioning clamp and printing equipment

Abstract

The utility model provides a printing positioning clamp and printing equipment. The printing equipment comprises a printing assembly and the printing positioning clamp. The printing positioning clamp comprises a base and a positioning piece rotationally installed on the base, the positioning piece is used for being sleeved with a to-be-printed piece, and the positioning piece is provided with a circumferential limiting part used for conducting circumferential limiting on the to-be-printed piece. A limiting assembly is arranged between the positioning piece and the base and used for conducting circumferential limiting on the positioning piece every time the positioning piece rotates by a preset angle relative to the base so that the positioning piece can stop rotating. Through the arrangement of the printing positioning clamp, the different circumferential positions of the to-be-printed part can be rapidly printed with scales, the consistency of all sets of scales can be improved, and the precision of the printed scales is guaranteed.

Description

Technical Field

[0001] The present application belongs to the field of printing technology, and more specifically, relates to a printing positioning fixture and a printing device. Background Art

[0002] The knob-type compression tourniquet is a medical device that is mainly used to control bleeding in emergency situations. The knob-type compression tourniquet can adjust the tightness of the tourniquet by rotating the knob. The knob is generally printed with scales, and the scales can accurately obtain the degree of tightening of the knob, helping the user to accurately control and adjust the size of the compression force to achieve the ideal hemostatic effect. Since the knob is in a rotating state during use, it is necessary to print multiple sets of scales on the circumference of the knob to ensure that the user can see clear scales in the same direction. At present, most of the scales are printed by manually positioning the knob, which is not only inefficient, but also has poor consistency among the sets of scales, which ultimately results in the user being unable to accurately control and adjust the size of the compression force, resulting in poor hemostatic effect or discomfort to the patient. For example, too much pressure will make the patient uncomfortable, and too little pressure will lead to poor hemostatic effect. Utility Model Content

[0003] The purpose of the embodiments of the present application is to provide a printing positioning fixture and a printing device to solve the technical problem of poor consistency of each group of printed scales on the knob existing in the prior art.

[0004] To achieve the above-mentioned purpose, the technical solution adopted in the present application is: to provide a printing positioning fixture, including a base and a positioning piece rotatably mounted on the base, the positioning piece is used for the workpiece to be printed to be mounted thereon, and the positioning piece is provided with a circumferential limiting portion for circumferentially limiting the workpiece to be printed; a limiting assembly is provided between the positioning piece and the base, and the limiting assembly is used to circumferentially limit the positioning piece after the positioning piece rotates relative to the base by a preset angle so that the positioning piece stops rotating.

[0005] In one embodiment, the circumferential limiting portion is protruding from the outer peripheral wall of the positioning member, and the circumferential limiting portion is used to cooperate with the groove on the workpiece to be printed to circumferentially limit the workpiece to be printed.

[0006] In one embodiment, a plurality of circumferential limiting portions spaced apart along the circumferential direction are provided on the outer circumferential wall of the positioning member, and the circumferential limiting portions extend along the axial direction of the positioning member.

[0007] In one embodiment, the limiting assembly includes a first limiting portion arranged in the base and a plurality of second limiting portions distributed circumferentially on the outer wall of the positioning member; during the rotation of the positioning member relative to the base, the first limiting portion can be snap-fitted with each of the second limiting portions in turn.

[0008] In one embodiment, the limiting assembly includes an elastic member installed on the base and a ball connected to the elastic member. The limiting assembly also includes a plurality of mating grooves recessed on the outer peripheral wall of the positioning member, and the ball is clamped in the mating groove under the elastic force of the elastic member.

[0009] In one embodiment, a guide groove is recessed on the outer peripheral wall of the positioning member, the guide groove extends along the circumference of the positioning member and is connected between two adjacent matching grooves, and the depth of the guide groove is smaller than the depth of the matching groove.

[0010] In one embodiment, the positioning member is further connected to a driving member for driving the positioning member to rotate.

[0011] In one embodiment, the positioning member includes a rotating part and a mounting part connected along the axial direction, the rotating part is passed through the base, the mounting part is used to mount the piece to be printed, and the driving member is a rotating cap connected to one end of the rotating part away from the mounting part.

[0012] In one embodiment, a bearing is also installed on the base, and the positioning member is supported by the bearing.

[0013] On the other hand, the present application also provides a printing device, including a printing component and the above-mentioned printing positioning fixture.

[0014] The printing positioning fixture and printing device provided by the present application have the following beneficial effects: by setting a base and rotating a positioning member arranged on the base, and the positioning member is provided with a circumferential limiting portion for circumferentially limiting the printed member, the printed member can be driven to rotate by rotating the positioning member, and then the scales can be printed at different circumferential positions of the printed member, which can not only improve the printing speed, but also ensure the printing consistency of each group of scales on the printed member, so that the printing scale has high precision, and then it is convenient for the user to accurately obtain the tightening degree of the knob according to the knob scale, so as to ensure that the tightness of the tourniquet is appropriate, which can not only ensure the hemostatic effect, but also improve the patient's comfort. At the same time, through the setting of the limiting component, the positioning member can pause with the printed member after rotating the preset angle each time, so that the printing component can print the position of the printed member to ensure the printing precision of the printed member, and it is also convenient for the user to grasp the rotation angle of the printed member. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 A schematic diagram of the three-dimensional structure of a printing positioning fixture provided in an embodiment of the present application;

[0017] Figure 2 A schematic diagram of the exploded structure of the printing positioning fixture provided in an embodiment of the present application;

[0018] Figure 3 A schematic diagram of a longitudinal cross-sectional structure of a printing positioning fixture provided in an embodiment of the present application;

[0019] Figure 4 A schematic diagram of the axial assembly of a positioning member and a workpiece to be printed in a printing positioning fixture provided in an embodiment of the present application;

[0020] Figure 5 A schematic diagram of the structure of a positioning member in a printing positioning fixture provided in an embodiment of the present application;

[0021] Figure 6 This is the structure of the vertical support plate in the printing positioning fixture provided in the embodiment of the present application.

[0022] Among them, the reference numerals in the figure are:

[0023] 100, base; 110, bottom support plate; 120, vertical support plate; 121, axial hole; 122, mounting groove; 123, assembly hole; 124, bearing hole; 125, step surface; 126, locking hole; 200, positioning member; 210, rotating part; 211, guide groove; 212, second mounting hole; 220, mounting part; 221, circumferential limiting part; 222, flange; 300, limiting assembly; 310, elastic member; 320, ball; 330, matching groove; 400, driving member; 410, first mounting hole; 420, countersunk hole; 500, bearing; 510, bearing inner ring; 520, bearing outer ring; 1000, part to be printed; 1100, sleeve hole; 1200, groove. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0025] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0026] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0028] See also Figures 1 to 3 , the printing positioning fixture provided in the embodiment of the present application is now described. The printing positioning fixture is used to position the knob in the knob-type compression tourniquet so that the printing component in the printing device can accurately print the scale on the knob. It can be understood that in other embodiments of the present application, the printing positioning fixture can also be used to position other parts to be printed 1000, such as for positioning sleeves, dials or other structures that require scales, which is not the only limitation here.

[0029] The printing positioning fixture includes a base 100 and a positioning member 200 rotatably mounted on the base 100, the positioning member 200 is used for the workpiece 1000 to be printed to be mounted thereon, and the positioning member 200 is provided with a circumferential limiting portion 221 for circumferentially limiting the workpiece 1000 to be printed; a limiting assembly 300 is provided between the positioning member 200 and the base 100, and the limiting assembly 300 is used to circumferentially limit the positioning member 200 when the positioning member 200 rotates relative to the base 100 by a preset angle so that the positioning member 200 stops rotating.

[0030] Regarding the circumferential limiting portion 221, it should be noted that the circumferential limiting portion 221 is used to limit the circumferential position of the workpiece 1000 to be printed, so that the workpiece 1000 to be printed and the positioning member 200 can rotate synchronously. In other words, only by rotating the positioning member 200, the workpiece 1000 to be printed can be driven to rotate to different orientations, so that the printing assembly can print scales at different circumferential positions of the workpiece 1000 to be printed.

[0031] Regarding the preset angle, it should be noted that the preset angle is related to the number of scale groups that need to be printed on the workpiece 1000 along the circumference. For example, when three groups of scales need to be printed evenly on the circumference of the workpiece 1000, the preset angle is 120 degrees. Each time the workpiece 1000 is rotated 120 degrees, the workpiece 1000 needs to be paused and the scales printed. It can be understood that in other embodiments, when two, four or more groups of scales need to be printed on the circumference of the workpiece 1000, the preset angle can also be 180 degrees, 90 degrees or less than 90 degrees, etc., which is not limited here.

[0032] Regarding the limiting assembly 300, it should be noted that the limiting assembly 300 can circumferentially limit the positioning member 200 that has rotated to the right position, so that the positioning member 200 can be paused. Of course, the positioning member 200 can also be driven to rotate by an external force, so that the positioning member 200 can overcome the limiting of the limiting assembly 300 on the positioning member 200, so that the positioning member 200 can continue to rotate to the next preset angle.

[0033] During printing, the workpiece 1000 to be printed is first sleeved on the positioning member 200, and the circumferential limiting portion 221 is used to limit the workpiece 1000 to be printed circumferentially; in the initial state, the limiting component 300 has a limiting effect on the positioning member 200, so that the positioning member 200 can pause the workpiece 1000 to be printed in the first position, and at this time, the workpiece 1000 to be printed can be printed in the first position; then, the positioning member 200 is driven to rotate, and when the positioning member 200 rotates by a preset angle, the limiting component 300 limits the positioning member 200, so that the positioning member 200 is paused in the second position, so that the workpiece 1000 to be printed can be printed in the second position, and so on, until the printing of the workpiece 1000 to be printed is completed.

[0034] The printing positioning fixture in the embodiment of the present application is provided with a base 100 and a positioning member 200 rotatably provided on the base 100, and the positioning member 200 is provided with a circumferential limiting portion 221 for circumferentially limiting the workpiece 1000 to be printed, so that the workpiece 1000 to be printed can be driven to rotate by rotating the positioning member 200, and then the scales can be printed on different circumferential positions of the workpiece 1000 to be printed, which not only improves the printing speed, but also ensures the printing consistency of each group of scales on the workpiece 1000 to be printed, so that the printing scale has high accuracy, which is beneficial for the user to accurately obtain the tightening degree of the knob according to the knob scale, thereby ensuring that the tightness of the tourniquet is appropriate, which not only ensures the hemostatic effect, but also improves the patient's comfort. At the same time, through the setting of the limit component 300, the positioning component 200 can pause with the workpiece 1000 to be printed after each rotation of a preset angle, so that the printing component can print the position of the workpiece 1000 to be printed, so as to ensure the printing accuracy of the workpiece 1000 to be printed, and also facilitate the user to grasp the rotation angle of the workpiece 1000 to be printed.

[0035] In one embodiment, see Figure 1 , Figure 4 and Figure 5 The circumferential limiting portion 221 is protruded from the outer peripheral wall of the positioning member 200 , and the circumferential limiting portion 221 is used to cooperate with the groove 1200 on the workpiece 1000 to be printed to perform circumferential limiting on the workpiece 1000 to be printed.

[0036] Specifically, a sleeve hole 1100 is formed at the center of the printed part 1000, and a groove 1200 is formed on the inner wall of the sleeve hole 1100. During assembly, the printed part 1000 is sleeved on the positioning member 200 through the sleeve hole 1100, and the groove 1200 is matched with the circumferential limiting portion 221 in a concave-convex manner, thereby forming a circumferential limit between the printed part 1000 and the positioning member 200, so that the printed part 1000 can rotate synchronously with the positioning member 200.

[0037] In a specific embodiment, see Figure 4 and Figure 5 A plurality of circumferential limiting portions 221 are provided on the outer peripheral wall of the positioning member 200 and are distributed at intervals along the circumferential direction, and the circumferential limiting portions 221 extend along the axial direction of the positioning member 200 .

[0038] Correspondingly, the grooves 1200 on the workpiece 1000 to be printed also extend along the axial direction of the positioning member 200, and the number of the grooves 1200 is the same as the number of the circumferential limiting portions 221. Along the circumference of the positioning member 200, each groove 1200 is arranged in a one-to-one correspondence with each circumferential limiting portion 221. During assembly, first align each groove 1200 with each circumferential limiting portion 221 one by one, and then slide the workpiece 1000 to be printed on the positioning member 200 along the axial direction, and make each groove 1200 slide on each circumferential limiting portion 221 in a one-to-one correspondence.

[0039] In this embodiment, by extending the circumferential limit portion 221 along the axial direction of the positioning member 200, the circumferential limit portion 221 and the groove 1200 can guide the assembly of the workpiece 1000 to be printed, and the axial precision of the workpiece 1000 to be printed on the positioning member 200 is high, thereby ensuring that each group of scales on the workpiece 1000 to be printed is neatly distributed along the axial direction of the workpiece 1000 to be printed, so that the scale precision is high. In addition, the circumferential limit portion 221 and the groove 1200 can also form a circumferential limit between the workpiece 1000 to be printed and the positioning member 200, ensuring that the workpiece 1000 to be printed and the positioning member 200 rotate synchronously, and the disassembly and assembly guidance is convenient.

[0040] It can be understood that in other embodiments of the present application, the circumferential limiting portion 221 may not extend along the axial direction of the positioning member 200. The circumferential limiting portion 221 is a protrusion on the positioning member 200, and the protrusion is engaged with the groove 1200 on the workpiece 1000 to be printed, thereby forming the positioning of the workpiece 1000 to be printed on the positioning member 200. In addition, in other embodiments, the groove 1200 can also be formed on the positioning member 200, and then the circumferential limiting portion 221 can be formed on the positioning member 200. This is not the only limitation here.

[0041] In one embodiment, the limiting assembly 300 includes a first limiting portion provided in the base 100 and a plurality of second limiting portions distributed circumferentially on the outer wall of the positioning member 200; during the rotation of the positioning member 200 relative to the base 100, the first limiting portion can be snap-fitted with each second limiting portion in turn.

[0042] Specifically, in the initial state, the first limiting portion is engaged with the first second limiting portion, so that the positioning member 200 is suspended in the initial state, thereby facilitating the positioning of the workpiece 1000 to be printed on the positioning member 200, and performing first orientation printing on the workpiece 1000 to be printed; then, the positioning member 200 is rotated by a preset angle, the first limiting portion is disengaged from the first second limiting portion and is engaged with the second second limiting portion rotated to correspond thereto, so that the positioning member 200 and the workpiece 1000 to be printed are suspended from printing in the second orientation; and so on, thereby completing multi-orientation printing of the workpiece 1000 to be printed.

[0043] In this embodiment, the positioning member 200 is limited on the base 100 by using a first limiting portion and a plurality of second limiting portions, which can not only save the cost of the first limiting portion, but also reduce the limiting effect of the first limiting portion on the second limiting portion, so that the user can easily rotate the positioning member 200. It can be understood that in other embodiments of the present application, the number of first limiting portions can also be multiple, and after each rotation of the positioning member 200 by a preset angle, the multiple first limiting portions are correspondingly connected with the multiple second limiting portions; in addition, in other embodiments, multiple first limiting portions and one second limiting portion can also be provided, and the second limiting portion is sequentially connected with each first limiting portion, which is not limited here.

[0044] In a specific embodiment, see Figure 3 The limiting assembly 300 includes an elastic member 310 installed on the base 100 and a ball 320 connected to the elastic member 310. The limiting assembly 300 also includes a plurality of matching grooves 330 recessed on the outer peripheral wall of the positioning member 200. The ball 320 is clamped in the matching groove 330 under the elastic force of the elastic member 310.

[0045] Specifically, after the positioning member 200 rotates relative to the base 100 by a preset angle, the ball 320 can be clamped in the matching groove 330 under the elastic force of the elastic member 310, so that the positioning member 200 and the printed member 1000 can be suspended in different positions; when the positioning member 200 needs to be rotated, it is only necessary to overcome the clamping force between the ball 320 and the matching groove 330 by external force to drive the positioning member 200 to rotate, which is simple to operate. Among them, the setting of the ball 320 ensures that the rotation of the ball 320 will not scratch the outer peripheral wall of the positioning member 200, thereby improving the service life of the printing positioning fixture. And due to the setting of the elastic member 310, the ball 320 can be kept in contact with the matching groove 330, thereby ensuring the limiting force of the limiting assembly 300.

[0046] In this embodiment, the matching groove 330 is the second limiting portion, and the ball 320 is the first limiting portion. It can be understood that in other embodiments of the present application, the first limiting portion can also be an arc-shaped protrusion convexly provided on the inner peripheral wall of the base 100, and the arc-shaped protrusion is respectively engaged with different matching grooves 330 to limit the positioning member 200. Alternatively, the protrusion can also be formed on the positioning member 200, and the matching groove 330 can be formed on the inner peripheral wall of the base 100, which is not limited here.

[0047] In one embodiment, see Figure 5The outer peripheral wall of the positioning member 200 is concavely provided with a guide groove 211, which extends along the circumference of the positioning member 200 and is connected between two adjacent matching grooves 330, and the depth of the guide groove 211 is less than the depth of the matching groove 330. The setting of the guide groove 211 enables the ball 320 to slide along the guide groove 211 during the rotation of the positioning member 200 relative to the base 100, thereby ensuring that the ball 320 can be inserted into each matching groove 330 in sequence, and avoiding the ball 320 from slipping on the positioning member 200 and failing to be inserted into the corresponding matching groove 330. In addition, the setting of the depth of the guide groove 211 being less than the depth of the matching groove 330 enables the guide groove 211 to only play a sliding guiding role for the ball 320, and will not have a circumferential limiting role on the ball 320, and the ball 320 can be inserted into a deeper position of the matching groove 330 under the action of the elastic member 310, thereby achieving a circumferential limiting role.

[0048] Optionally, the width of the guide groove 211 along the axial direction of the positioning member 200 is smaller than the width of the matching groove 330 along the axial direction of the positioning member 200 .

[0049] In one embodiment, see Figure 3 and Figure 6 The base 100 is formed with an axial hole 121, and the positioning member 200 is rotatably arranged in the axial hole 121. The base 100 is formed with a mounting groove 122, and the center line of the mounting groove 122 is perpendicular to the center line of the axial hole 121. The elastic member 310 is a cylindrical spring, and the elastic member 310 is installed in the mounting groove 122. One end of the elastic member 310 is fixed in the mounting groove 122, and the other end of the elastic member 310 is connected to the ball 320. The ball 320 is partially received in the mounting groove 122, and the ball 320 partially extends out of the mounting groove 122 and extends into the axial hole 121 to be snapped into the matching groove 330.

[0050] In one embodiment, see Figure 3 and Figure 6 The base 100 is also provided with an assembly hole 123, which is set through one of the side surfaces of the base 100. The assembly hole 123 and the mounting groove 122 are respectively located on opposite sides of the shaft hole 121. The assembly hole 123 and the mounting groove 122 are coaxial and have the same inner diameter, and the assembly hole 123 is connected to the shaft hole 121. The arrangement of the assembly hole 123 enables the elastic member 310 and the ball 320 to be installed in the mounting groove 122 from the assembly hole 123 through the shaft hole 121.

[0051] In one embodiment, see Figures 1 to 3 The positioning member 200 is also connected to a driving member 400 for driving the positioning member 200 to rotate. During the printing process, the positioning member 200 only needs to be driven to rotate by the driving member 400, and the operation is simple.

[0052] Among them, the driving member 400 can be an automatic driving member 400, which automatically drives the positioning member 200 to rotate. For example, the positioning member 200 can be driven to rotate by a rotating motor or a rotating cylinder; or, the driving member 400 can also be a manual driving member 400. For example, the driving member 400 is a rotating cap or a handwheel, and the user can drive the positioning member 200 to rotate by rotating the rotating cap or the handwheel.

[0053] In one embodiment, see Figure 3 and Figure 5 The positioning member 200 includes a rotating portion 210 and a mounting portion 220 connected along the axial direction. The rotating portion 210 is penetrated through the base 100. The mounting portion 220 is used to mount the workpiece 1000 to be printed. The driving member 400 is a rotating cap connected to one end of the rotating portion 210 away from the mounting portion 220.

[0054] During assembly, the rotating part 210 of the positioning member 200 is first inserted into the shaft hole 121 on the base 100, and then the driving member 400 is connected to the end of the rotating part 210 away from the mounting part 220, and finally the printed part 1000 is sleeved on the mounting part 220 of the positioning member 200. When the positioning member 200 needs to be rotated, it is only necessary to manually rotate the rotating cap, which is easy to operate and has a simple structure.

[0055] In one embodiment, see Figure 3 and Figure 5 The end of the mounting portion 220 connected to the rotating portion 210 has a flange 222 extending radially outward, and the flange 222 is spaced apart from a side of the base 100 away from the rotating cap, and the flange 222 is used to axially limit the printed piece 1000. The flange 222 can be set to axially limit the printed piece 1000, avoid the printed piece 1000 from being too deep, and avoid the printed piece 1000 from abutting against the side of the base 100 to affect the rotation of the positioning member 200; and the flange 222 is spaced apart from the base 100, which can avoid friction between the flange 222 and the base 100.

[0056] In one embodiment, see Figure 3 The driving member 400 and the rotating part 210 are locked and fixed by a fastener (not shown). Specifically, the driving member 400 is formed with a first mounting hole 410 that penetrates axially, and the end of the rotating part 210 that is away from the mounting part 220 is concavely formed with a second mounting hole 212. The fastener sequentially penetrates the first mounting hole 410 and the second mounting hole 212 to lock the driving member 400 and the rotating part 210 together.

[0057] In addition, a countersunk hole 420 is formed on the end surface of the driving member 400 away from the rotating part 210. The countersunk hole 420 is connected to the first mounting hole 410. The inner diameter of the countersunk hole 420 is larger than the inner diameter of the first mounting hole 410. The nut of the fastener is received in the countersunk hole 420.

[0058] In one embodiment, see Figures 1 to 3 A bearing 500 is also installed on the base 100, and the positioning member 200 is supported by the bearing 500. The arrangement of the bearing 500 can improve the rotation stability of the positioning member 200 on the base 100.

[0059] In one embodiment, see Figure 3 and Figure 6 A bearing hole 124 is formed on the base 100. The bearing hole 124 is connected to the shaft hole 121. The inner diameter of the bearing hole 124 is larger than the inner diameter of the shaft hole 121. A step surface 125 is connected between the inner circumference of the bearing hole 124 and the inner circumference of the shaft hole 121. The bearing 500 is installed in the bearing hole 124. The positioning member 200 includes a rotating portion 210 and a mounting portion 220. The rotating portion 210 is inserted into the shaft hole 121, and one end of the rotating portion 210 away from the mounting portion 220 is supported on the bearing 500. The bearing 500 includes a bearing inner ring 510 and a bearing outer ring 520. The bearing inner ring 510 is axially abutted between the driving member 400 and the step surface 125. The driving member 400 and the rotating portion 210 are locked together by fasteners, thereby forming a fixation between the driving member 400, the rotating portion 210 and the bearing inner ring 510.

[0060] Also, see Figure 3 and Figure 6 The base 100 is provided with a locking hole 126 on the end surface of the bearing hole 124. The locking member (not shown) is locked in the locking hole 126. The outer extension of the locking member abuts against the bearing outer ring 520 along the axial direction, thereby locking and fixing the bearing outer ring 520 on the base 100. When the user drives the driving member 400 to rotate, the driving member 400 drives the positioning member 200, the printed piece 1000 and the bearing inner ring 510 to rotate, and the bearing outer ring 520 and the base 100 remain fixed.

[0061] In one embodiment, see Figure 1 and Figure 3 The base 100 includes a bottom support plate 110 and a vertical support plate 120. The bottom support plate 110 is in the shape of a flat plate and is used to be attached to a workbench. The vertical support plate 120 is vertically mounted on the bottom support plate 110. The vertical support plate 120 is a long block structure. The shaft hole 121 extends in the horizontal direction of the vertical support plate 120, and the assembly hole 123 extends in the vertical direction of the vertical support plate 120. The positioning member 200 is transversely penetrated on the vertical support plate 120.

[0062] On the other hand, an embodiment of the present application also provides a printing device, including a printing component and the above-mentioned printing positioning fixture, the printing positioning fixture is used to position the workpiece 1000 to be printed, the printing component is arranged above the workpiece 1000 to be printed, and the printing component is used to print scales on the workpiece 1000 to be printed that is rotated into place.

[0063] The printing device in the embodiment of the present application can improve the printing speed and printing accuracy of the printing device on the workpiece 1000 to be printed by setting the above-mentioned printing positioning fixture.

[0064] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A printing positioning fixture, characterized in that: It includes a base and a positioning member rotatably mounted on the base, wherein the positioning member is used for a piece to be printed to be sleeved thereon, and the positioning member is provided with a circumferential limiting portion for circumferentially limiting the piece to be printed; a limiting assembly is provided between the positioning member and the base, and the limiting assembly is used to circumferentially limit the positioning member after the positioning member rotates relative to the base by a preset angle each time so that the positioning member stops rotating.

2. The printing positioning fixture according to claim 1, characterized in that: The circumferential limiting portion is protrudingly arranged on the outer peripheral wall of the positioning member, and the circumferential limiting portion is used to cooperate with the groove on the workpiece to be printed to perform circumferential limiting on the workpiece to be printed.

3. The printing positioning fixture according to claim 2, characterized in that: A plurality of circumferential limiting portions spaced apart along the circumferential direction are arranged on the outer peripheral wall of the positioning member, and the circumferential limiting portions extend along the axial direction of the positioning member.

4. The printing positioning fixture according to claim 1, characterized in that: The limiting assembly includes a first limiting portion arranged in the base and a plurality of second limiting portions distributed circumferentially on the outer peripheral wall of the positioning member; during the rotation of the positioning member relative to the base, the first limiting portion can be snap-fitted with each of the second limiting portions in turn.

5. The printing positioning fixture according to claim 1, characterized in that: The limiting assembly includes an elastic member installed on the base and a ball connected to the elastic member. The limiting assembly also includes a plurality of matching grooves recessed on the outer peripheral wall of the positioning member. The ball is clamped in the matching groove under the elastic force of the elastic member.

6. The printing positioning fixture according to claim 5, characterized in that: The outer peripheral wall of the positioning member is concavely provided with a guide groove, which extends along the circumferential direction of the positioning member and is connected between two adjacent matching grooves. The depth of the guide groove is smaller than the depth of the matching groove.

7. The printing positioning fixture according to any one of claims 1 to 6, characterized in that: The positioning member is also connected to a driving member for driving the positioning member to rotate.

8. The printing positioning fixture according to claim 7, characterized in that: The positioning member includes a rotating part and a mounting part connected along the axial direction, the rotating part is penetrated through the base, the mounting part is used to mount the workpiece to be printed, and the driving member is a rotating cap connected to one end of the rotating part away from the mounting part.

9. The printing positioning fixture according to any one of claims 1 to 6, characterized in that: A bearing is also installed on the base, and the positioning member is supported by the bearing.

10. A printing device, characterized in that: It comprises a printing component and a printing positioning fixture as described in any one of claims 1 to 9.

Images